Which is lighter, the Saucony Endorphin Speed 2 or the Endorphin Speed 3?

The Saucony Endorphin Speed 2, by 0.3 oz in a men's US 9 (7.8 oz vs 8.1 oz).

Did the price change between the Saucony Endorphin Speed 2 and the Endorphin Speed 3?

Yes. List price went up $10, from $160 to $170. Street prices differ: the older shoe usually sells under list once its successor ships.

Do the Saucony Endorphin Speed 2 and Endorphin Speed 3 come in the same widths?

Yes. Both run in D for men's sizes, so a width that fit in the Endorphin Speed 2 carries over to the Endorphin Speed 3.

How do the stack heights compare?

35.5 mm heel and 27.5 mm forefoot on the Saucony Endorphin Speed 2, against 36 mm and 28 mm on the Endorphin Speed 3. That is 0.5 mm more under the heel and 0.5 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.

Is the Endorphin Speed 3 still the newest Endorphin Speed?

No. The Endorphin Speed 4 replaced it in 2024, so the Endorphin Speed 3 now sells as an older model and usually below its $170 list price.

Saucony Endorphin Speed 2 vs Endorphin Speed 3

Updated July 31, 2026. Specs are men's US 9.

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Changed character

THE SHORT ANSWER

The Endorphin Speed 3, by default. Amazon's Saucony Endorphin Speed 2 stock is gone in both men's and women's sizes, so what follows is a record of what changed, not a choice you still have.

Endorphin Speed 2 · 2021

Endorphin Speed 3 · 2022

Every spec, side by side

Spec	Endorphin Speed 2	Endorphin Speed 3
FIT AND WEIGHT
Weight	7.8 oz	8.1 oz
Widths	D	D
Upper	Engineered mono-mesh with a gusseted tongue	Engineered mesh on a wider last
	Narrow-footed runners found the new fit sloppy, and tongue slip came up repeatedly in reviews.
CUSHIONING GEOMETRY
Heel stack	35.5 mm	36 mm
	The half millimeter is not the story. The platform got noticeably wider in the heel and midfoot, with sole flare and foam sidewalls, to fix the old tippy heel.
Forefoot stack	27.5 mm	28 mm
Drop	8 mm	8 mm
MATERIALS
Midsole	PWRRUN PB foam (expanded-bead PEBA)	PWRRUN PB foam (expanded-bead PEBA)
Plate	Full-length S-curve nylon plate	Winged S-curve nylon plate
VALUE
List price at launch	$160	$170
OTHER CHANGES
Plate shape	Straight S-curve, no wings	Wings wrap up under the midfoot
	The wings cured the heel instability and became the update's flashpoint: some runners felt them under the arch, and a minority reported outright arch pain.
Outsole	Sparse rubber coverage	More rubber in heel and forefoot

Weighing whether to switch at all, rather than which of these two to buy? What replaced the Saucony Endorphin Speed 2 covers the verdict on the update, what loyalists made of it, and the closest alternatives from other brands.

Buy the Endorphin Speed 2

Old stock gone

Amazon's stock of the Saucony Endorphin Speed 2is gone in both men's and women's sizes, and discontinued stock does not come back.

Old stock is gone. See what replaced it

Buy the Endorphin Speed 3

Stocked at Amazon

Men's: Check price at Amazon Women's: Check price at Amazon

Availability last checked Jul 31, 2026.

Questions runners ask

Which is lighter, the Saucony Endorphin Speed 2 or the Endorphin Speed 3?: The Saucony Endorphin Speed 2, by 0.3 oz in a men's US 9 (7.8 oz vs 8.1 oz).
Did the price change between the Saucony Endorphin Speed 2 and the Endorphin Speed 3?: Yes. List price went up $10, from $160 to $170. Street prices differ: the older shoe usually sells under list once its successor ships.
Do the Saucony Endorphin Speed 2 and Endorphin Speed 3 come in the same widths?: Yes. Both run in D for men's sizes, so a width that fit in the Endorphin Speed 2 carries over to the Endorphin Speed 3.
How do the stack heights compare?: 35.5 mm heel and 27.5 mm forefoot on the Saucony Endorphin Speed 2, against 36 mm and 28 mm on the Endorphin Speed 3. That is 0.5 mm more under the heel and 0.5 mm more under the forefoot. See the stack height note in the table above: the published figures changed convention mid-lineage.
Is the Endorphin Speed 3 still the newest Endorphin Speed?: No. The Endorphin Speed 4 replaced it in 2024, so the Endorphin Speed 3 now sells as an older model and usually below its $170 list price.